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RA-18-0016-A11

Radium Radiator Cap

WARNING: Cancer and Reproductive Harm
www.P65Warnings.ca.gov

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Radium high performance radiator caps are engineered to improve cooling efficiency. The radiator cap is an essential part of an upgraded cooling system and will help to safely maximize engine performance by controlling the coolant boiling point. Each OEM replacement radiator cap is manufactured from stamped stainless steel for durability and feature silicone sealing elements that are superior to natural rubber gaskets. 

Available in 3 pressure ratings: 1.1Bar (16.0psi), 1.3Bar (18.9psi), and 1.5Bar (21.8psi). A higher radiator coolant pressure effectively raises the boiling temperature of the coolant, providing extra safety margin and preventing air pocket cavitation at the water pump

Also available in 2 common styles (Type-A and Type-B). Radium radiator caps are designed for mini size (32mm ID) radiator necks only.

Type-A Vehicle Fitment

  • 1990-1993 Acura Integra
  • 1991-2005 Acura NSX
  • 1990-1993 Honda Accord
  • 1988-1991 & 2016-up Honda Civic
  • 1988-1991 Honda CRX 
  • 1992-2001 Honda Prelude
  • 2003-2008 Infiniti G35
  • 2008-up Infiniti G37
  • 2014-up Infiniti Q50
  • 2014-up Infiniti Q60
  • 1992-2000 Lexus SC400
  • 1990-1995 Mazda Cosmo
  • 1990-2005 Mazda Miata
  • 2006-up Mazda MX-5
  • 1986-2002 Mazda RX-7
  • 2004-2011 Mazda RX-8
  • 1991-1999 Mitsubishi 3000GT
  • 1990-1999 Mitsubishi Eclipse
  • 2002-up Mitsubishi Lancer/EVO
  • 1989-1998 Nissan 180SX
  • 1989-1998 Nissan 200SX
  • 1989-1998 Nissan 240SX
  • 1990-1996 Nissan 300ZX
  • 2003-2009 Nissan 350Z
  • 2009-up Nissan 370Z
  • 1988-1994 Nissan Cefiro
  • 2005-up Nissan Frontier
  • 2009-up Nissan GT-R
  • 1989-2002 Nissan Laurel
  • 1989-2002 Nissan Silvia
  • 1989-2002 Nissan Skyline
  • 2005-2006 Saab 9-2X
  • 1993-up Subaru Impreza
  • 1990-up Subaru Legacy
  • 2015-up Subaru WRX STi
  • 2015-up Subaru WRX
  • 1982-1995 Toyota Celica
  • 1985-1995 Toyota MR2
  • 1986-1992 Toyota Supra 
  • Radium Coolant Expansion Tank 

Type-B Vehicle Fitment

  • 1994-2001 Acura Integra
  • 2002-2006 Acura RSX
  • 2004-2008 Acura TSX
  • 1994-1997 Honda Accord
  • 1992-2015 Honda Civic
  • 1993-1997 Honda Del Sol 
  • 2003-2011 Honda Element
  • 2007-up Honda Fit 
  • 2000-2009 Honda S2000
  • 2008-up Lexus LX570
  • 1998-2005 Lexus IS300
  • 2012-up Scion FR-S
  • 2012-up Subaru BRZ
  • 2012-up Toyota 86
  • 2008-up Toyota Land Cruiser
  • 2008-up Toyota Sequoia
  • 1993-2002 Toyota Supra
  • 2007-up Toyota Tundra